Flavio Bolsonaro and Lula are equally matched in a Datafolha poll ahead of Brazil's runoff election. The final debate concentrated on economic issues and corruption, with both candidates aiming for undecided voters. Taylor Swift's influence is also drawing attention, with pop fans potentially aiding Lula's campaign. Voting security is a concern as Brazil's rapid count comes before the US midterms. Trump's presence is also impacting the Brazilian election.